minix/kernel/glo.h
Evgeniy Ivanov 2487445f5f make panic() work for multiboot/elf case
. we cannot use the boot monitor to print the system diag buffer
	. for serial, we do nothing, just reset, everything is already printed
	. for not-serial, we print the current diag buffer using direct video
	  memory access from the kernel
2012-02-14 14:48:10 +01:00

90 lines
3.1 KiB
C

#ifndef GLO_H
#define GLO_H
/* Global variables used in the kernel. This file contains the declarations;
* storage space for the variables is allocated in table.c, because EXTERN is
* defined as extern unless the _TABLE definition is seen. We rely on the
* compiler's default initialization (0) for several global variables.
*/
#ifdef _TABLE
#undef EXTERN
#define EXTERN
#endif
#include <minix/config.h>
#include <minix/ipcconst.h>
#include <machine/archtypes.h>
#include "archconst.h"
#include "config.h"
#include "debug.h"
/* Kernel information structures. This groups vital kernel information. */
EXTERN struct kinfo kinfo; /* kernel information for users */
EXTERN struct machine machine; /* machine information for users */
EXTERN struct kmessages kmess; /* diagnostic messages in kernel */
EXTERN char kmess_buf[80*25]; /* printable copy of message buffer */
EXTERN struct k_randomness krandom; /* gather kernel random information */
EXTERN struct loadinfo kloadinfo; /* status of load average */
/* Process scheduling information and the kernel reentry count. */
EXTERN struct proc *vmrequest; /* first process on vmrequest queue */
EXTERN unsigned lost_ticks; /* clock ticks counted outside clock task */
EXTERN char *ipc_call_names[IPCNO_HIGHEST+1]; /* human-readable call names */
EXTERN struct proc *kbill_kcall; /* process that made kernel call */
EXTERN struct proc *kbill_ipc; /* process that invoked ipc */
/* Interrupt related variables. */
EXTERN irq_hook_t irq_hooks[NR_IRQ_HOOKS]; /* hooks for general use */
EXTERN int irq_actids[NR_IRQ_VECTORS]; /* IRQ ID bits active */
EXTERN int irq_use; /* map of all in-use irq's */
EXTERN u32_t system_hz; /* HZ value */
/* Miscellaneous. */
EXTERN reg_t mon_sp; /* boot monitor stack */
EXTERN int mon_return; /* true if we can return to monitor */
EXTERN int do_serial_debug;
EXTERN int serial_debug_baud;
EXTERN time_t boottime;
EXTERN char params_buffer[512]; /* boot monitor parameters */
EXTERN int minix_panicing;
EXTERN int verboseboot; /* verbose boot, init'ed in cstart */
#define MAGICTEST 0xC0FFEE23
EXTERN u32_t magictest; /* global magic number */
#if DEBUG_TRACE
EXTERN int verboseflags;
#endif
#ifdef USE_APIC
EXTERN int config_no_apic; /* optionaly turn off apic */
EXTERN int config_apic_timer_x; /* apic timer slowdown factor */
#endif
EXTERN u64_t cpu_hz[CONFIG_MAX_CPUS];
#define cpu_set_freq(cpu, freq) do {cpu_hz[cpu] = freq;} while (0)
#define cpu_get_freq(cpu) cpu_hz[cpu]
#ifdef CONFIG_SMP
EXTERN int config_no_smp; /* optionaly turn off SMP */
#endif
/* VM */
EXTERN int vm_running;
EXTERN int catch_pagefaults;
/* Variables that are initialized elsewhere are just extern here. */
extern struct boot_image image[]; /* system image processes */
extern struct segdesc_s gdt[]; /* global descriptor table */
EXTERN volatile int serial_debug_active;
EXTERN struct cpu_info cpu_info[CONFIG_MAX_CPUS];
/* BKL stats */
EXTERN u64_t kernel_ticks[CONFIG_MAX_CPUS];
EXTERN u64_t bkl_ticks[CONFIG_MAX_CPUS];
EXTERN unsigned bkl_tries[CONFIG_MAX_CPUS];
EXTERN unsigned bkl_succ[CONFIG_MAX_CPUS];
#endif /* GLO_H */